Set initial value of g_beep

WTSupported in traditional Synergy on Windows


USupported on UNIX
VSupported on OpenVMS

The DTK_BEEP environment variable determines how U_START will initialize the g_beep field (a global value defined in tkctl.def), which turns the terminal bell (all platforms) and MessageBeep (Windows) on or off.


One of the following:

0 or false

Initializes g_beep to false (0).

Any other value

Initializes g_beep to true (1). (default)


If DTK_BEEP is set to a value of 0 or false (case‑insensitive), U_START initializes g_beep to false. If g_beep is set to false, calls to U_BEEP have no effect, and runtime routines that are private to UI Toolkit suppress the terminal bell and MessageBeep. For more information, see Customizing configuration fields.

Setting location

The environment or the [synergy], [dbr], or [myprog] section of synergy.ini or synuser.ini (where myprog is any .dbr file).

Used by

UI Toolkit


set DTK_BEEP=false